// Ceres Solver - A fast non-linear least squares minimizer
// Copyright 2023 Google Inc. All rights reserved.
// http://ceres-solver.org/
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//
// Author: sameeragarwal@google.com (Sameer Agarwal)
//         keir@google.com (Keir Mierle)

#include "ceres/trust_region_strategy.h"

#include <memory>

#include "absl/log/log.h"
#include "ceres/dogleg_strategy.h"
#include "ceres/levenberg_marquardt_strategy.h"

namespace ceres::internal {

TrustRegionStrategy::~TrustRegionStrategy() = default;

std::unique_ptr<TrustRegionStrategy> TrustRegionStrategy::Create(
    const Options& options) {
  switch (options.trust_region_strategy_type) {
    case LEVENBERG_MARQUARDT:
      return std::make_unique<LevenbergMarquardtStrategy>(options);
    case DOGLEG:
      return std::make_unique<DoglegStrategy>(options);
    default:
      LOG(FATAL) << "Unknown trust region strategy: "
                 << options.trust_region_strategy_type;
  }

  LOG(FATAL) << "Unknown trust region strategy: "
             << options.trust_region_strategy_type;
  return nullptr;
}

}  // namespace ceres::internal
